Re: Globe Wernicke Labels

Hi, I have a globe wernicki 7 stackable bookcase labels are gold and black. The top reads D-Ex 798 1/2 . Bottom one is D-12 1/4 798. Another, D10 1/4 798. The rest are D 8 1/2 798. Brass trim and iron pulls ( I think ) It has the beveled glass and straight legs at the base.The brass has turned dark. Should I clean it? Otherwise in very good condition. Could you let me know more about it? Thank you. A